Christy, a highly-rated young goalkeeper was handed his first professional contract at St James Park in April 2013.

Christy went on to make his debut for the club the following season in a 3-2 victory over Southend at Roots Hall on February 15, 2014. He then went on to become first-choice keeper towards the end of that campaign.

On August 28, 2014, Christy was called up to the England under-20s team for a friendly match against Romania and has since received two further calls up at that level.

The young shot stopper had a superb 2016/17 season. He managed to nudge experienced shot-stopper Bobby Olejnik out of the No. 1 spot with a string of fine displays between the sticks.